Bosch Rexroth | SYHDFEE-1X250R-VZB25U99-1832-A0A1V
SYHDFEE-1X/250R-VZB25U99-1832-A0A1V
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The SYHDFEE-1X/250R-VZB25U99-1832-A0A1V is produced by Bosch Rexroth as part of the SYD Hydraulic Control Systems series and is applied in hydraulic automation where variable displacement and pressure regulation are required. It delivers a displacement of 250 cm³ per revolution and can supply up to 375 l/min when operating at 1500 rpm with the displacement set to maximum. Speed capability spans from 0 rpm at standstill to 2100 rpm for high-demand cycles. The unit withstands a maximum operating pressure of 350 bar while the suction port tolerates inlet pressures between 0.8 bar absolute and 30 bar, supporting both flooded and boosted reservoirs. Fluid cleanliness must meet ISO 4406 (c) 18/16/13 to protect internal components.
Peak mechanical output reaches 277 kW, and the drive shaft can transmit 2782 Nm without structural overload. At a differential pressure of 350 bar the hydraulic section develops 1391 Nm, offering consistent torque for servo-controlled swings. Dynamic behavior is defined by a moment of inertia of 0.0959 kg·m² and a rotary shaft stiffness of 543 kN·m/rad, aiding accurate motion loops. The housing holds 10 l of oil for lubrication and thermal balance. Electronic controls are powered from a 24 V DC supply, and the displacement is commanded through a ±10 V swivel angle input that interfaces with standard motion controllers.
Technical Specifications
Displacement
250 cm3
Fill Quantity (housing)
10 l
Hydraulic Fluid Cleanliness
ISO 4406 (c) 18/16/13
Maximum Drive Torque (shaft Z)
2782 Nm
Maximum Flow (1500 Rpm, Vg Max)
375 l/min
Maximum Inlet Pressure (suction Port S)
30.0 bar
Maximum Operating Pressure
350 bar
Maximum Power
277 kW
Maximum Speed (vg ≤ Vg Max)
2100 rpm
Maximum Torque (Δp = 350 Bar)
1391 Nm
Minimum Inlet Pressure (suction Port S)
0.8 bar (abs)
Minimum Speed
0 rpm
Moment Of Inertia
0.0959 kgm2
Rotary Stiffness Of Drive Shaft
543 kNm/rad
Supply Voltage
24 VDC
Swivel Angle Command Input
±10 V
1620 Old Apex Road
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